Winning a competition in architecture is a ticket to oblivion. It's just an idea. Ninety-nine per cent never get built.

Buffer between commercial, memorial and retail space.

There are more people living in Lower Manhattan now than before the terrorist attacks. That's faith for you. There's such a strong spirit here.

We often judge cities by great public buildings. But we admire great cities because people live there in a beautiful way. You have to think about how each person will live there; you can't just think about abstract ideas.

And of course I like Berlin a lot. It's such an interesting city

Cities are the greatest creations of humanity.

It's about how to bring together the seemingly contradictory aspects of the memorial, which is about a tragedy and how it changed the world, but also about creating a vital and beautiful city of the 21st century.